
\begin{table}[htbp]
   \caption{\label{tab:mid_structural} Fatal MID Initiation: Structural Legacies}
   \centering
   \begin{tabular}{lcccc}
      \tabularnewline \midrule \midrule
      Dependent Variable: & \multicolumn{4}{c}{Fatal MID onset $\times 100$}\\
      Model:                                    & (1)            & (2)             & (3)             & (4)\\  
      \midrule
      \emph{Variables}\\
      Lost home rule \& lost unity              & 0.1672$^{***}$ & 0.2606$^{***}$  & 0.2501$^{***}$  &   \\   
                                                & (0.0381)       & (0.0526)        & (0.0524)        &   \\   
      Lost home rule \& lost unity (post-1816)  &                &                 &                 & 0.2397$^{***}$\\   
                                                &                &                 &                 & (0.0444)\\   
      Lost home rule \& lost unity (pre-1816)   &                &                 &                 & 0.2562$^{**}$\\   
                                                &                &                 &                 & (0.0846)\\   
      Lost unity only                           & 0.0442         & 0.0543          & 0.0535          &   \\   
                                                & (0.0470)       & (0.0454)        & (0.0448)        &   \\   
      Lost unity only (post-1816)               &                &                 &                 & 0.0330\\   
                                                &                &                 &                 & (0.0483)\\   
      Lost unity only (pre-1816)                &                &                 &                 & 0.0821$^{+}$\\   
                                                &                &                 &                 & (0.0430)\\   
      Mean united home rule (1100 to $t-1$)     & -0.0914$^{+}$  & -0.1877$^{***}$ & -0.1736$^{***}$ & -0.1679$^{***}$\\   
                                                & (0.0516)       & (0.0475)        & (0.0412)        & (0.0383)\\   
      \midrule
      \emph{Fixed-effects}\\
      Baseline controls                         & Yes            & Yes             & Yes             & Yes\\  
      Extended controls                         &                &                 & Yes             & Yes\\  
      Year                                      & Yes            & Yes             & Yes             & Yes\\  
      Peace year                                & Yes            & Yes             & Yes             & Yes\\  
      State A                                   &                & Yes             & Yes             & Yes\\  
      State B                                   &                & Yes             & Yes             & Yes\\  
      Border duration A                         &                &                 & Yes             & Yes\\  
      Border duration B                         &                &                 & Yes             & Yes\\  
      \midrule
      \emph{Fit statistics}\\
      Observations                              & 188,210        & 188,210         & 188,210         & 188,210\\  
      \midrule \midrule
      \multicolumn{5}{l}{\emph{Clustered (Directed Dyad ID \& State A \& State B) standard-errors in parentheses}}\\
      \multicolumn{5}{l}{\emph{Signif. Codes: ***: 0.001, **: 0.01, *: 0.05, +: 0.1}}\\
   \end{tabular}
   
   \par \raggedright 
   \parbox[t]{\width=\textwidth}{\textbf{Notes:} OLS estimates of fatal MID iniation. 
          The unit of analysis is the directed country dyad year. 
          Baseline controls: relative territorial size of state A vs. state B; logged absolute size of country B; 
          Share of aggregate group governing in state A located in state B;
          Share of aggregate group governing in state A located in own country;
          Dummies for peace and calendar years.  
          Extended controls: logged aggregate group size of governing segments in A and B;
          ethnic fractionalization of countries A and B;
          conflict history (number of past years with ongoing MIDs involving A and B);
          time since last border change involving country A or B (FE). 
          Standard errors clustered on dyad, state A, and state B in parentheses.
          Significance codes: ***: 0.001, **: 0.01, *: 0.05, +: 0.1}
\end{table}


